A light emitting device, a display panel, and a display panel manufacturing method are provided in the embodiments of the present disclosure. The light emitting device includes a first electrode, and second electrode arranged around the first electrode, and the second electrode is symmetrically disposed with respect to the first electrode. A distance from each of points on the second electrode to a center point of the first electrode is equal. When the light emitting device is transferring, any point on the second electrode abuts the corresponding electrode, thereby reducing the difficulty in a mass transfer process of the light-emitting device.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The light emitting device according to claim 1, wherein a PN insulating layer is disposed between the first electrode and the second electrode.
3. The light emitting device according to claim 2, wherein the second electrode is arranged around the first electrode, and a distance from each of points on a circumferential line of the second electrode to a center point of the first electrode is equal.
4. The light emitting device according to claim 3, wherein a width of the first electrode is greater than or equal to a width of the second electrode in a same cross section.
5. The light emitting device according to claim 2, wherein the first electrode has a cylindrical structure, and the second electrode has a circular ring structure.
6. The light emitting device according to claim 2, wherein a preparation material of the P-type contact layer comprises gallium nitride.
7. The light emitting device according to claim 2, wherein a preparation material of the N-type contact layer comprises gallium nitride.
9. The display panel according to claim 8, wherein either the first electrode is the N-type electrode, and the second electrode is the P-type electrode, or the first electrode is the P-type electrode, and the second electrode is the N-type electrode.
10. The display panel according to claim 9, wherein the second electrode is arranged around the first electrode, and a distance from each of points on a circumferential line of the second electrode to a center point of the first electrode is equal.
11. The display panel according to claim 10, wherein a width of the first electrode is greater than or equal to a width of the second electrode.
12. The display panel according to claim 8, wherein the first electrode is the N-type electrode, the first electrode is arranged in abutment with the ground terminal, and the second electrode is arranged in abutment with the source electrode.
13. The display panel according to claim 8, wherein the second electrode is the N-type electrode, the second electrode is arranged in abutment with the ground terminal, and the first electrode is arranged in abutment with the source electrode.
14. The display panel according to claim 8, wherein a black matrix layer is disposed above the TFT device.
15. The display panel according to claim 14, wherein a second encapsulation layer is disposed above the black matrix layer and the light emitting device.
17. The display panel according to claim 8, wherein the first electrode has a cylindrical structure, and the second electrode has a circular ring structure; and wherein a circumferential line of the second electrode is in a circular shape.
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June 8, 2021
June 4, 2024
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